Why does the flightless kiwi lay such remarkably large eggs?

Sharing the love for New Zealand’s national bird | A closer look at the kiwi · 8:06 · Video: Natural History Museum · Watch at the source

In short: The kiwi is New Zealand's national bird, a unique creature with distinct biological traits. This video features bird nest and egg specialist Douglas Russell from the Natural History Museum at Tring, who explains the evolutionary quirks of this bird and the modern threats it faces.

The kiwi possesses several unusual physical characteristics, including an exceptionally long bill and the ability to lay eggs that are large relative to the bird's body size. These features are central to its survival and natural history.

Beyond its anatomy, the kiwi currently encounters various risks in its environment. By examining specimens and expert insights from the Natural History Museum, we can better understand the biology of this iconic species and the conservation challenges it must overcome.

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